Create the OVS Provider Bridge and Start 2 VMs

Getting Started with Napatech Link-Virtualization™ Software
Platform
Napatech SmartNIC
Content Type
Getting Started
Getting Started Guide
Capture Software Version
Link-Virtualization™ Software 4.5

About this task

The OVS provider bridge is typically managed by the service provider and provides connectivity to the physical network via a connected physical interface.

Procedure

  1. Create the OVS Provider bridge: 
    ovs-vsctl --if-exists del-br br0
ovs-vsctl add-br br0 -- set bridge br0 \ 

 datapath_type=netdev \
   -- br-set-external-id br0 bridge-id br0 \
   -- set bridge br0 fail-mode=standalone

# Add physical port
ovs-vsctl add-port br0 dpdk0 \
  -- set interface dpdk0 type=dpdk \
  options:dpdk-devargs=class=eth,mac=xx:xx:xx:xx:xx:xx \
   mtu_request=1600
    where:

    mac=xx:xx:xx:xx:xx:xx is the MAC address of the SmartNIC physical port.

    For more information see Reading MAC Addresses of the SmartNIC.

  2. Bring up the br0 internal port and bind it with an IP address to the kernel TCPIP stack: 
    ip addr add 172.16.1.1/24 dev br0
ip link set br0 up
    Note: 172.16.1.x is the local host IP address of the SmartNIC port.
    • When setting up host1, use address 172.16.1.1
    • When setting up host2, use address 172.16.1.2
  3. Start two VMs on host1: 
    /usr/libexec/qemu-kvm \
  -enable-kvm -cpu host -m 4G -smp 4 \
  -object memory-backend-file,id=mem,size=4G,mem-path=/mnt/huge,share=on \
  -chardev socket,id=char0,path=/usr/local/var/run/stdvio5,server=on \
  -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce=on \
  -device virtio-net-pci,netdev=mynet1,mac=DE:AD:BE:EF:0A:01 \
  -numa node,memdev=mem -mem-prealloc \
  -net user,hostfwd=tcp::10021-:22 \
  -net nic,macaddr=BA:AD:CA:FE:0A:01 \
  -nographic \
  /path/to/images/vm1.img

/usr/libexec/qemu-kvm \
  -enable-kvm -cpu host -m 4G -smp 4 \
  -object memory-backend-file,id=mem,size=4G,mem-path=/mnt/huge,share=on \
  -chardev socket,id=char0,path=/usr/local/var/run/stdvio6,server=on \
  -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce=on \
  -device virtio-net-pci,netdev=mynet1,mac=DE:AD:BE:EF:0A:02 \
  -numa node,memdev=mem -mem-prealloc \
  -net user,hostfwd=tcp::10022-:22 \
  -net nic,macaddr=BA:AD:CA:FE:0A:02 \
  -nographic \
  /path/to/images/vm2.img